Vehicle To Grid (V2G)

What is Vehicle To Grid?

Vehicle to Grid (V2G) utilities a bi-directional charger to both store and extract energy from an EV Battery to the the Energy Grid. This enables Electric vehicles to provide energy storage for the grid balancing loads, and providing reliability.

Energy Storage Capacity of Electric Vehicles compared to Grid Needs in Australia

Massive Potential Capacity Available

A renewable energy grid needs more energy storage. By 2050 it's estimated that NEM (Australian East Coast National Energy Market) Energy Storage will need to increase by 400 times to meet consumer needs. By 2050 its estimated that just 25% of EV Storage capacity would meet the entirety of the grids needs. By harnessing this capacity we need to build significantly less energy storage infrastructure - saving money and the planet. V2G is estimated to offset $94B in large scale Battery Energy Storage Systems (BESS) in the NEM alone, with an install cost of capital at ~6% that of BESS Systems per MWh.

Cash flow calculations for vehicle to grid in various Australian States.

Generate Income for EV Owners

Financial modelling completed by EnX on behalf of ARENA shows how V2G can generate net income for EV Owners of the lifespan of an electric Vehicle under realistic assumptions. This income is on top of any charging energy costs. Not only is charging your car free - but you can make income in addition to that by intelligently sourcing power to the grid through V2G. V2G has significant economic upside (more than double) when compared to purely Smart Charging.

V2G - Frequently Asked Questions

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If V2G has so many advantages why isn't it everywhere?

V2G technology represents a massive market and will be a critical part of the worlds future energy, however the technology is still in its infancy:

Many EV Manufacturers are only just starting to support V2G (there are currently over 60 EV models which support V2G and the list is growing very week!).
V2G Chargers are still in development and there is significant development work to bring bi-directional chargers to market which are cost effective.
Regulations and standards are inconsistent globally and still being developed. Grids don't yet have the regulatory framework to engage with V2G.
Many consumers aren't yet aware of the advantages of V2G and hence are applying market pressure on manufacturers and regulators to accelerate delivery of V2G.

The challenges are a natural part of any emerging new technology.

Does V2G Damage my EVs Battery?

Increased charge/discharge cycles can reduce battery life however V2G often only uses a small total capacity of the vehicle battery and often not for long periods. Compared to driving wear can often be minimal.

Some studies even show that managed V2G can potentially improve battery health. Keeping the battery within a specific charge range (avoiding full charges and deep discharges) and optimizing discharge depth can slow down degradation.

Vehicle To Grid (V2G)

What is Vehicle To Grid?

Massive Potential Capacity Available

Generate Income for EV Owners

V2G - Frequently Asked Questions

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